Experimental Investigation of the Characteristics of Flow about Curved Circular Cylinders PDF Download
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Author: Surry, Jean
Publisher: Institute for Aerospace Studies, University of Toronto
ISBN:
Category : Cylinders
Languages : en
Pages : 24
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Book Description
The flow and the associated forces on curved circular cylinders, at Reynolds Numbers between 10,000 and 1,000,000, were investigated. The shape and normal force distribution of a flexible curved cylinder were found. Flow visualisation tests and pressure surveys were made on rigid curved cylinders. A comparison was made with earlier results for infinite straight cylinders inclined to the flow. It is concluded that the curvature of a cylinder has a significant effect on the flow and pressure in the wake, and must be considered in the prediction of the aerodynamic forces on such a cylinder. (Author).
Author: Surry, Jean
Publisher: Institute for Aerospace Studies, University of Toronto
ISBN:
Category : Cylinders
Languages : en
Pages : 24
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Book Description
The flow and the associated forces on curved circular cylinders, at Reynolds Numbers between 10,000 and 1,000,000, were investigated. The shape and normal force distribution of a flexible curved cylinder were found. Flow visualisation tests and pressure surveys were made on rigid curved cylinders. A comparison was made with earlier results for infinite straight cylinders inclined to the flow. It is concluded that the curvature of a cylinder has a significant effect on the flow and pressure in the wake, and must be considered in the prediction of the aerodynamic forces on such a cylinder. (Author).
Author: M.M. Zdravkovich
Publisher: Oxford University Press
ISBN: 9780198565611
Category : Mathematics
Languages : en
Pages : 628
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Book Description
This text offers an authoritative compilation of experimental data, theoretical models, and computer simulations which will provide the reader with a comprehensive survey of research work on the phenomenon of flow around circular cylinders.
Author: Silvana Kuehtz
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Author: Hyun Jin Kim
Publisher:
ISBN:
Category : Aerospace engineering
Languages : en
Pages : 506
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Book Description
An experimental investigation has been carried out on the flow transitions around a smooth circular cylinder in the initial stage of the critical Reynolds number region, where drag coefficient starts to decrease. In this Reynolds number region, intermitent reattachment of the separated boundary layer was found, while only initial separation position excursion was observed in the subcritical region. Large spanwise variations in the surface pressure and wake velocity observed in the first critical subregion were associated with local wake width pulsations caused by spanwise phase variations in the unsteady flow reattachment.
Author: Woo Taik Moon
Publisher:
ISBN:
Category :
Languages : en
Pages : 84
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Book Description
Author: George Eugene Mattingly (Jr.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 134
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Book Description
Author: D. Almosnino
Publisher:
ISBN:
Category : Reynolds number
Languages : en
Pages : 40
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Book Description
The recently reported phenomenon of asymmetric flow separation form a circular cylinder in the critical Reynolds number regime has been confirmed in a water-tunnel experiment. For the first time, an attempt was made to visualize the wake of the cylinder during the transition from subcritical to critical flow and to correlate the visualizations with lift and drag measurements. The occurrence of the dominant asymmetric-flow state was quite repeatable, both when increasing and decreasing the Reynolds number, resulting in a mean lift coefficient of C sub l approx = to 1.2 and a shift in the angle of the wake by about 12 deg. A distinctive step change in the drag and shedding frequency was also found to occur. A hysteresis was confirmed to exist in this region as the Reynolds number was cycled over the transition range. Both boundaries of the asymmetry appear to be supercritical bifurcations in the flow. The asymmetry was normally steady in the mean; however, there were instances when the direction of the asymmetry reversed and remained so for the duration of the Reynolds number sweep through this transition region. A second asymmetry was observed at a higher Reynolds number; however the mean lift coefficient was much lower, and the direction of the asymmetry was not observed to reverse. Introducing a small local disturbance into the boundary layer was found to prevent the critical asymmetry from developing along the entire span of the cylinder. (Author).
Author: Jaime Santos Son
Publisher:
ISBN:
Category : Hydrodynamics
Languages : en
Pages : 392
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Book Description
Author: GEORGE E. MATTINGLY
Publisher:
ISBN:
Category :
Languages : en
Pages : 1
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Book Description
Author: Byram Bays-Muchmore
Publisher:
ISBN:
Category : Unsteady flow (Fluid dynamics)
Languages : en
Pages : 590
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Book Description
